385105391 has 8 divisors (see below), whose sum is σ = 421469568. Its totient is φ = 348967000.

The previous prime is 385105387. The next prime is 385105411. The reversal of 385105391 is 193501583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385105391 - 2² = 385105387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385105381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52865 + ... + 59706.

It is an arithmetic number, because the mean of its divisors is an integer number (52683696).

Almost surely, 2^385105391 is an apocalyptic number.

385105391 is a deficient number, since it is larger than the sum of its proper divisors (36364177).

385105391 is a wasteful number, since it uses less digits than its factorization.

385105391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112893.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 385105391 is about 19624.1022979396. The cubic root of 385105391 is about 727.5450095163.

The spelling of 385105391 in words is "three hundred eighty-five million, one hundred five thousand, three hundred ninety-one".